/*
 * Copyright 2006-2018 The MZmine 2 Development Team
 * 
 * This file is part of MZmine 2.
 * 
 * MZmine 2 is free software; you can redistribute it and/or modify it under the terms of the GNU
 * General Public License as published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 * 
 * MZmine 2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with MZmine 2; if not,
 * write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
 * USA
 */

package net.sf.mzmine.parameters.parametertypes;

import java.util.Collection;

public class FormulaParameter extends StringParameter {

  private static final String formulaPattern = "^([A-Z][a-z]?[0-9]*)+$";

  public FormulaParameter() {
    super("Formula", "The chemical formula in its neutral form, e.g. C6H12O6", null);
  }

  @Override
  public boolean checkValue(Collection<String> errorMessages) {
    boolean superCheck = super.checkValue(errorMessages);

    String value = getValue();
    if (value == null) {
      return superCheck;
    }
    value = value.trim();

    if ((value != null) && (!value.matches(formulaPattern))) {
      errorMessages.add("\"" + value + "\" is not a valid chemical formula");
      return false;
    }

    return superCheck;
  }

}
